For a continuous function f defined on the set of real numbers,
$$\int _ { 1 } ^ { 3 } f ( x ) d x = 5$$
is known. Accordingly,
$$\int _ { 0 } ^ { 1 } ( 4 + f ( 2 x + 1 ) ) d x$$
What is the value of this integral?
A) 1
B) 2
C) 3
D) $\frac { 5 } { 2 }$
E) $\frac { 13 } { 2 }$
For a continuous function f defined on the set of real numbers,

$$\int _ { 1 } ^ { 3 } f ( x ) d x = 5$$

is known. Accordingly,

$$\int _ { 0 } ^ { 1 } ( 4 + f ( 2 x + 1 ) ) d x$$

What is the value of this integral?\\
A) 1\\
B) 2\\
C) 3\\
D) $\frac { 5 } { 2 }$\\
E) $\frac { 13 } { 2 }$